To celebrate 40 years of PCjr, here's a quick hack of Doom8088 with 160x200 16 color PCjr graphics.
Because there's not enough memory for level 2, the game goes immediately from level 1 to level 8.
Here's a video of this release running in DOSBox with machine=pcjr and cycles=3000.
Because it only takes 1 byte change to alter the graphics mode, this release also includes a 320x200 4 color CGA graphics mode and a 640x200 2 color CGA graphics mode.
Here's a video of the 320x200 4 color mode and here's a video of the 640x200 2 color mode in 86box emulating a 286 running at 25 MHz.